> > That's right, does this card show up on /proc/pci ? My builtin USB
> > shows up ...
>
> Yes, it does show up in /proc/pci. It also has /dev nodes (that I created by
> hand). But it's not going to show up in the /proc/device-tree, as OF knows
> nothing about it.
That's understood - I was looking for a way to detect potential input
devices hooked up to USB even when there's no OF supported USB. But I
figure that's a rare corner case, we should better focus on handling the
primary input devices properly.
Michael